Type a page name and press Enter. You'll jump to the page if it exists, or you can create it if it doesn't.
To create a page in a module other than kernel32, prefix the name with the module name and a period.
LockResource (kernel32)
.
Summary
C# Signature:
[DllImport("kernel32.dll")]
static extern IntPtr LockResource(IntPtr hResData);
VB.NET Signature:
<DllImport("kernel32.dll")> _
Private Shared Function LockResource(hResData As IntPtr) As IntPtr
End Function
User-Defined Types:
None.
Notes:
does not call SetLastError , according to MSDN.
Tips & Tricks:
this function returnes a pointer to the resource. you can use Marshal.Copy() to copy the data from the pointer to a managed array.
Sample Code:
pResource = LockResource(hResource);
if (hResource.ToInt32() == 0) {
throw new ApplicationException("could not get pointer to file");
}
fileSizeComp = ((Module)mFiles[index]).CompSize;
fileSizeUnComp = ((Module)mFiles[index]).Size;
byte[] fileBuffComp = new byte[fileSizeComp + mOffset];//original buffer
byte[] fileBuffUnComp = new byte[fileSizeUnComp + 1]; //uncompressed file
//copy to managed memory:
Marshal.Copy(pResource, fileBuffComp, 0, fileSizeComp + mOffset);
Sample Code:
[DllImport("Kernel32.dll", EntryPoint = "FindResourceW", SetLastError = true, CharSet = CharSet.Unicode)]
private static extern IntPtr FindResource(IntPtr hModule, string pName, string pType);
[DllImport("Kernel32.dll", EntryPoint = "SizeofResource", SetLastError = true)]
private static extern uint SizeofResource(IntPtr hModule, IntPtr hResource);
[DllImport("Kernel32.dll", EntryPoint = "LoadResource", SetLastError = true)]
private static extern IntPtr LoadResource(IntPtr hModule, IntPtr hResource);
[DllImport("Kernel32.dll", EntryPoint = "LockResource")]
private static extern IntPtr LockResource(IntPtr hGlobal);
internal static int TestFindResource()
{
IntPtr resH1 = FindResource(IntPtr.Zero, "RES_CUSTOMIZE", "CUSTOM");
if (IntPtr.Zero == resH1)
{
throw new System.ComponentModel.Win32Exception();
}
IntPtr resH2 = LoadResource(IntPtr.Zero, resH1);
if (IntPtr.Zero == resH2)
{
throw new System.ComponentModel.Win32Exception();
}
IntPtr resH3 = LockResource(resH2);
if (IntPtr.Zero == resH3)
{
throw new Exception("Lock failed");
}
uint resSize = SizeofResource(IntPtr.Zero, resH1);
byte[] y = new byte[resSize];
Marshal.Copy(resH3, y, 0, (int)resSize);
}
Alternative Managed API:
Do you know one? Please contribute it!
Documentation
The LockResource API
11/6/2010 1:02:01 PM - -87.61.63.34
The SetLastError API
1/26/2016 3:27:33 AM - -124.148.167.58
Please edit this page!
Do you have...
helpful tips or sample code to share for using this API in managed code?
corrections to the existing content?
variations of the signature you want to share?
additional languages you want to include?
Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).